799737121 has 6 divisors (see below), whose sum is σ = 809495570. Its totient is φ = 790094928.

The previous prime is 799737109. The next prime is 799737139. The reversal of 799737121 is 121737997.

It can be written as a sum of positive squares in only one way, i.e., 705433600 + 94303521 = 26560^2 + 9711^2 .

It is not a de Polignac number, because 799737121 - 2²³ = 791348513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799737181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51156 + ... + 64933.

Almost surely, 2^799737121 is an apocalyptic number.

It is an amenable number.

799737121 is a deficient number, since it is larger than the sum of its proper divisors (9758449).

799737121 is an equidigital number, since it uses as much as digits as its factorization.

799737121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116255 (or 116172 counting only the distinct ones).

The product of its digits is 166698, while the sum is 46.

The square root of 799737121 is about 28279.6237775540. The cubic root of 799737121 is about 928.2160742305.

The spelling of 799737121 in words is "seven hundred ninety-nine million, seven hundred thirty-seven thousand, one hundred twenty-one".